Trip unit tie bar having integral flexibly connected links

A multipole circuit breaker including cooperating contact means for each pole thereof, an operating mechanism operatively connected to said contact means, latch means for maintaining a releasable portion of said operating mechanism in a reset position wherein said operating means is effective to close said contact means, an automatic trip means including an individual overload sensing means for each of said poles, said automatic trip means including a common trip bar means comprising a single elongated plastic element, said element including first means defining a pivot axis for said trip bar means, second means operatively connected to said latch means, third means for each of said poles extending laterally from joining locations remote from said axis into operative engagement with said automatic trip means whereby operation of the latter is effective to pivot said trip bar means about said pivot axis causing said second means to trip said latch means to release said portion whereby said operating mechanism opens said contact means, said element also including an elongated bar having its axis generally parallel to and laterally offset from said pivot axis;

• said joining locations being spaced along said bar.